Odpowiedzi

2009-10-20T19:36:52+02:00
X- pierwsza liczba
y- druga liczba

{x + y =92
{40/100x = 3/4 y | *100

{x + y = 92
{40x = 300/4 y

{x + y = 92
{40x = 75y | -75y



{x + y = 92 | *-40
{40x - 75y = 0

{-40x - 40y = -3680
+{ 40x - 75y = 0
-----------------------
-115y = -3680 | /-115
y = 32




{x + y = 92 | *75
{40x - 75y = 0

{75x + 75y = 6900
+{40x - 75y = 0
---------------------
115x = 6900 | /115
x = 60


------- - Kreska ułamkowa
3/4 - ułamki


Lubie takie zadania :P